I recently switched to windows 10, and now every time I open sm64 through Project64 the game automatically stretches, instead of having the black bars on the side, even though its set to 4:3. I have GLideN64 installed and did everything that was recommended in the setup guide. Any help would be greatly appreciated. I really don't want to be forced to play in widescreen.

either dont use fullscreen or add a custom resolution in widows and set it to 1440x1080